I have a collection of Middlesex M.I.s including those for Isleworth, which I plan to put 'up' at some point. Anyway, there is no Vanderheyden in them. One should point out that only a small proportion of people left inscribed memorials, and of those only a small proportion survived to be copied. I also have a so far unchecked copy of Isleworth baptisms and burials to 1841 typed by one of the kind people who are helping enter records from typed and manuscript material sent them over the internet; I hope these will be available in the next few months on CD and probably on some internet access too. Isleworth registers are not deposited at LMA; the Ancestry images are taken from the BTs which are so deposited but only start very late. This does show David Vanderheyden as being buried 13 Aug 1806 (not 1805) aged 74 and Poyer aged 83 28 Feb 1818. These are the only two and no baptisms are recorded in Isleworth up to 1852. Regards Cliff Webb